Diode Dynamics Butyl Headlamp Sealant single roll is an automotive-grade rope designed to reseal headlamps and tail lamps to protect against moisture intrusion. The 7mm-diameter sealant is formulated to be easy to work with without leaving a sticky mess, and one roll provides 20 feet of material — typically enough to reseal two large headlamp housings for a neat, weatherproof finish.
Diode Dynamics Butyl Headlamp Sealant (Single)